Name one of two types of pentahedrons

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

What is the greater volume 72 quarts or 23 gallons

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent and the median? 40 25 8 36 18 15 24 27 43 9 12 19 22 34 31 20 26 19 17 28